A few CM options that I saw. None of these might be right but I think you'll get an idea of why I think you might eventually find something worth having. Sizing varies depending on the cut. They tend to cut for a smaller, narrow frame but their "relaxed" cuts really *are* relaxed. I sometimes size up and sometimes don't in their tops and dresses -- it all depends. As you know I have a narrow frame, but not as narrow/small as Angie's. My shoulders are square and quite wide for my height/size, without being at all broad. (Like coat hangers, sort of, ha ha). And of course I have a small bust.
The cut of the Jaapa is awfully similar to the Briton blouse I am wearing in my second outfit photo today. It works both tucked and untucked and also semi-tucked. The high-low hem makes it quite easy to wear.
I really like the Bernee with the sheer sleeve. If it were navy it would be mine!
ETA: Longline jackets!!